When studying wildlife populations, biologists sometimes use a technique called “mark-recapture.” For example, a researcher captured and tagged 30 deer in a wildlife management area. Several months later, the researcher observed a new sample of 80 deer and determined that 5 were tagged. What is the total number of deer in the population?

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given: Total number of suspected criminals n= 1604 Number of peoples who are not captured = 1011…

Q: According to past reports 51% of employees own a car. In a random sample of 106 employees, how many…

A: Total no.of employees(n)= 106 The percentage of employees own a car(p)= 0.51

Q: A survey shows that 3/5 Australian adults are overweight and 1/10 Australian adults are obese. What…

A:

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: State the hypotheses.   Let p1 denotes the population proportion of men who own cats. Let p2 denotes…

Q: You want to know what percentage of students own pets at your university. In asking 10 random…

A: In an observational study, researcher observes the individuals and measure the outcomes. In this…

Q: According to past reports 48% of employees own a car. In a random sample of 250 employees, how many…

A: Total no.of employees=250 The percentage of employees own a car=0.48

Q: in the previous example, the adult weighing 285 pounds decides to not paricipate in the study. what…

A:

Q: What is the test statistic? Round your answer to three decimal places. Click…

A:

Q: You wish to take a random sample of 45 students from a population of 120 men and 100  women for the…

A:

Q: A researcher divided subjects into two groups according to gender and then selected 200 members from…

A: Since we know that In stratified sampling we divided homogeneous groups from the heterogeneous…

Q: recent study reported that 12% of people toss away about half of what they buy at the grocery store.…

A: From the given information we conduct Z test for proportion.

Q: According to a Gallup poll conducted in April 2020, 31% of Americans identify as democrats, 30%…

A: Given information- We have given that according to a Gallup poll conducted in April 2020- Percentage…

Q: A pharmaceutical company conducts a study where 50 patients are given a drug. They find that 10…

A: Sample is the subset of the population.

Q: It is estimated that 15% of teens own iphone. In the MDM4U class there are 25 teens who own…

A:

Q: Colin is a student in a consumer mathematics class creating a report on the annual interest rates of…

A: Using excel, the required z-score for each type of bank can be calculated as; 1. Enter the data into…

Q: A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which…

A:

Q: Maci is a social networking maniac! Although she prefers Instagram, she also spends a lot of time…

A: Introduction A variable is a no., characteristic which can be counted or measured.

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Q: A researcher wants to determine what proportion of all high school students plans to attend…

A: Obtain the critical value at 90% confidence level:It is given that the margin of error is 0.02. The…

Q: According to an article in Newsweek, the natural ratio of girls to boys is 100:105. In China, the…

A: It is been asked to test whether the percent of girls born in China is 46.7. The appropriate test to…

Q: Texas after the 2016 presidential election. They asked a variety of questions, including whom the…

A:

Q: Antibiotic is claimed to be effective in 70% of the patients it is given to. If antibiotic is given…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Q: A hospital discharged 2,895 patients in January. If 3% developed a hospital-based infection, how…

A: Given, No of patients discharged in January=2895 3% developed a hospital-based infection No of…

Q: America OnLine published a survey question. Among the 2,300 Internet users who responded, 20%…

A: From the given information, America OnLine published a survey question. Among the 2,300 Internet…

Q: According to an article in Newsweek, the natural ratio of girls to boys is 100:105 . In China, the…

A: Given that, According to an article in Newsweek, the natural ratio of girls to boys is  100:105 . In…

Q: our population? W

A: A population is a total group included in the survey. A sample is a specific group from which data…

Q: How many different arrangements can be formed from the word STATISTICS?

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Q: re residents (if any) must I ask, given the fact that (somehow) I know that 62 percent of all…

A: Given: Sample size, n = 32 Probability, p = 62100=0.62 Here the distribution is binomial and for a…

Q: When you hear thw words “population” and “sample,” what comes first in your mind

A: A population can be defined as a group of individuals belonging to the same species residing in a…

Q: Rangers tagged and released 250 small mouth bass into a Round Lake. A month later, fishermen on the…

A: Given that 250 small mouth bass are tagged and released in lake. A month later a sample of 50 mouth…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.